carked acrked craked rcaked arcked racked cakred ackred ckared kcared akcred kacred crkaed rckaed ckraed kcraed rkcaed krcaed arkced rakced akrced karced rkaced kraced carekd acrekd craekd rcaekd arcekd racekd caerkd acerkd cearkd ecarkd aecrkd eacrkd creakd rceakd cerakd ecrakd recakd ercakd areckd raeckd aerckd earckd reackd erackd cakerd ackerd ckaerd kcaerd akcerd kacerd caekrd acekrd ceakrd ecakrd aeckrd eackrd ckeard kceard cekard eckard kecard ekcard akecrd kaecrd aekcrd eakcrd keacrd ekacrd crkead rckead ckread kcread rkcead krcead crekad rcekad cerkad ecrkad reckad erckad ckerad kcerad cekrad eckrad kecrad ekcrad rkecad krecad rekcad erkcad kercad ekrcad arkecd rakecd akrecd karecd rkaecd kraecd arekcd raekcd aerkcd earkcd reakcd erakcd akercd kaercd aekrcd eakrcd kearcd ekarcd rkeacd kreacd rekacd erkacd keracd ekracd carkde acrkde crakde rcakde arckde rackde cakrde ackrde ckarde kcarde akcrde kacrde crkade rckade ckrade kcrade rkcade krcade arkcde rakcde akrcde karcde rkacde kracde cardke acrdke cradke rcadke arcdke racdke cadrke acdrke cdarke dcarke adcrke dacrke crdake rcdake cdrake dcrake rdcake drcake ardcke radcke adrcke darcke rdacke dracke cakdre ackdre ckadre kcadre akcdre kacdre cadkre acdkre cdakre dcakre adckre dackre ckdare kcdare cdkare dckare kdcare dkcare akdcre kadcre adkcre dakcre kdacre dkacre crkdae rckdae ckrdae kcrdae rkcdae krcdae crdkae rcdkae cdrkae dcrkae rdckae drckae ckdrae kcdrae cdkrae dckrae kdcrae dkcrae rkdcae krdcae rdkcae drkcae kdrcae dkrcae arkdce rakdce akrdce kardce rkadce kradce ardkce radkce adrkce darkce rdakce drakce akdrce kadrce adkrce dakrce kdarce dkarce rkdace krdace rdkace drkace kdrace dkrace caredk acredk craedk rcaedk arcedk racedk caerdk acerdk ceardk ecardk aecrdk eacrdk creadk rceadk ceradk ecradk recadk ercadk arecdk raecdk aercdk earcdk reacdk eracdk cardek acrdek cradek rcadek arcdek racdek cadrek acdrek cdarek dcarek adcrek dacrek crdaek rcdaek cdraek dcraek rdcaek drcaek ardcek radcek adrcek darcek rdacek dracek caedrk acedrk ceadrk ecadrk aecdrk eacdrk caderk acderk cdaerk dcaerk adcerk dacerk cedark ecdark cdeark dceark edcark decark aedcrk eadcrk adecrk daecrk edacrk deacrk credak rcedak cerdak ecrdak recdak ercdak crdeak rcdeak cdreak dcreak rdceak drceak cedrak ecdrak cderak dcerak edcrak decrak redcak erdcak rdecak drecak edrcak dercak aredck raedck aerdck eardck readck eradck ardeck radeck adreck dareck rdaeck draeck aedrck eadrck aderck daerck edarck dearck redack erdack rdeack dreack edrack derack cakedr ackedr ckaedr kcaedr akcedr kacedr caekdr acekdr ceakdr ecakdr aeckdr eackdr ckeadr kceadr cekadr eckadr kecadr ekcadr akecdr kaecdr aekcdr eakcdr keacdr ekacdr cakder ackder ckader kcader akcder kacder cadker acdker cdaker dcaker adcker dacker ckdaer kcdaer cdkaer dckaer kdcaer dkcaer akdcer kadcer adkcer dakcer kdacer dkacer caedkr acedkr ceadkr ecadkr aecdkr eacdkr cadekr acdekr cdaekr dcaekr adcekr dacekr cedakr ecdakr cdeakr dceakr edcakr decakr aedckr eadckr adeckr daeckr edackr deackr ckedar kcedar cekdar eckdar kecdar ekcdar ckdear kcdear cdkear dckear kdcear dkcear cedkar ecdkar cdekar dcekar edckar deckar kedcar ekdcar kdecar dkecar edkcar dekcar akedcr kaedcr aekdcr eakdcr keadcr ekadcr akdecr kadecr adkecr dakecr kdaecr dkaecr aedkcr eadkcr adekcr daekcr edakcr deakcr kedacr ekdacr kdeacr dkeacr edkacr dekacr crkeda rckeda ckreda kcreda rkceda krceda crekda rcekda cerkda ecrkda reckda erckda ckerda kcerda cekrda eckrda kecrda ekcrda rkecda krecda rekcda erkcda kercda ekrcda crkdea rckdea ckrdea kcrdea rkcdea krcdea crdkea rcdkea cdrkea dcrkea rdckea drckea ckdrea kcdrea cdkrea dckrea kdcrea dkcrea rkdcea krdcea rdkcea drkcea kdrcea dkrcea credka rcedka cerdka ecrdka recdka ercdka crdeka rcdeka cdreka dcreka rdceka drceka cedrka ecdrka cderka dcerka edcrka decrka redcka erdcka rdecka drecka edrcka dercka ckedra kcedra cekdra eckdra kecdra ekcdra ckdera kcdera cdkera dckera kdcera dkcera cedkra ecdkra cdekra dcekra edckra deckra kedcra ekdcra kdecra dkecra edkcra dekcra rkedca kredca rekdca erkdca kerdca ekrdca rkdeca krdeca rdkeca drkeca kdreca dkreca redkca erdkca rdekca drekca edrkca derkca kedrca ekdrca kderca dkerca edkrca dekrca arkedc rakedc akredc karedc rkaedc kraedc arekdc raekdc aerkdc earkdc reakdc erakdc akerdc kaerdc aekrdc eakrdc keardc ekardc rkeadc kreadc rekadc erkadc keradc ekradc arkdec rakdec akrdec kardec rkadec kradec ardkec radkec adrkec darkec rdakec drakec akdrec kadrec adkrec dakrec kdarec dkarec rkdaec krdaec rdkaec drkaec kdraec dkraec aredkc raedkc aerdkc eardkc readkc eradkc ardekc radekc adrekc darekc rdaekc draekc aedrkc eadrkc aderkc daerkc edarkc dearkc redakc erdakc rdeakc dreakc edrakc derakc akedrc kaedrc aekdrc eakdrc keadrc ekadrc akderc kaderc adkerc dakerc kdaerc dkaerc aedkrc eadkrc adekrc daekrc edakrc deakrc kedarc ekdarc kdearc dkearc edkarc dekarc rkedac kredac rekdac erkdac kerdac ekrdac rkdeac krdeac rdkeac drkeac kdreac dkreac redkac erdkac rdekac drekac edrkac derkac kedrac ekdrac kderac dkerac edkrac dekrac
Note: these 'words' (valid or invalid) are all the permutations of the word carked. These words are obtained by scrambling the letters in carked.